Tobacco pipe



M. MIKESH TOBACCO PIPE Filed Dec. 20, 1952y May 29, 1934.

INVENTOR Mdr/ifi /Vzifas ATTORNEYS atented May 29, 1934 UNITED STATES ATENT FFC 7 Claims.

This invention relates to tobacco pipes and has for one of its objects to provide passages whereby the smoke maybe drawn off from the bowl adjacent the level thereof where the combustion takes place and through the stem, so as to insure a dry, cool, smoke, without the necessity of draw ing the smoke through the unburned tobacco.

Another object is to provide an adjustable means cooperating with a series or" passages from the bowl arranged at different heights, whereby communication between the bowl and the stem may be selectively effected according to the variation oi the tobacco level at which the combustion is taking place in the bowl.

Another object is to provide corresponding extensions to such passageways so as to permit cleaning of said passageways by cleaning devices which may be applied from the exterior of the bowl.

A further object is to provide a releasable and adjustable valve means by which it is possible to selectively eiect communication between the bowl through any one of the passages and to the stem, and at the same time to effectively shut on' not only the other non-selected apertures, but also eiectively close those apertures which extend to the exterior of the pipe, the valve means being removable so as to permit an easy cleaning operation.

A further object is to provide the valve means with a simple handle and pointer so as to provide a means or indication so that the smoker may select any one of the passages in the bowl which he desires to be put into communication with the stem and be at all times aware of that passage which he has selected.

To this end it is proposed to provide a pipe of the usual conventional characteristics with the exception that a slight extension is made on one side or the bowl so as to receive a hollow, rotatable and adjustable sleeve, closed at the top and in communication with the stem portion of the pipe propel' and accordingly with the stem as it is inserted.

lt is also proposed to arrange a series of passages extending preferably at an upward incline from the interior of the bowl though the thickcned portion thereof to the exterior. The sleeve is inserted in the aperture provided for in the extension of the bowl and is provided with a like number of apertures corresponding to the number or" passages from the bowl and the apertures are so arranged that but one of the same may register with the passage extending from the interior of the bowl at a time. The aper- (Cl. ISI- 12) tures extending from the exterior of the bowl to the sleeve are so disposed with relation to the apertures in the sleeve that at no time while the sleeve is in proper position will there be any registry of any of the sleeve apertures therewith and thus there can be no leakage of smoke to the exterior but on the contrary all of the smoke drawn in will pass through the selected passage from the interior of the bowl through the sleeve and through the stem into the smokers mouth.

With the foregoing and other objects in view, the invention consists in the combination of parts and in the details of construction hereinafter set forth in the following specification and appended claims, certain embodiments thereof being illustrated in the accompanying drawing, in which:

Figure l is a top plan view of the pipe;

Figure 2 is a view in longitudinal section taken along line 2 2 of Figure 1;

Figure 3 is a view in cross-section taken along line .'3-3 of Figure 2;

Figure 4 is a View Similar to Figure 2 showing a modified form thereof, in which, there are arranged a stationary sleeve and a movable sleeve valve. l

Referring more particularly to the drawing, the pipe in general may be of the conventional form including a bowl l having a stem portion 2 and a detachable stem or mouthpiece 3, the latter being provided with a suitable extension 4 of restricted size so as to nt within the stem portion of the bowl and abut against the shoulders 5 and 6. The stem may be also tted with a removable metallic tube 7 which ts within the bore 8 of the stem and abuts against a shoulder 9 of the stem in such a manner that the metallic tube may extend 'to a point more or less adjacent to the bowlportion of the pipe, as is well known practice.

The bowl is provided with an integral extension or thickened portion l0 which is bored to receive a rotatable sleeve 1l which is preferably formed of metal in contrast to non-rnetallic inaterial of the pipe bowl. The bowl and its extension 10 are provided with a series of passageways extending from the interior or" the bowl and upwardly inclined therefrom toward and to the exterior of the bowl extension. These passageways pass through the vertical bore provided for the reception of the sleeve l1, and while they are in aligned relation so as to be substantially continuous, they are referred to in the drawing as corresponding passageways 12, 12', 13, 13', and 11i, 14. The sleeve 11 is provided with a central bore 11 which communicates with the bore 18 of the stem portion of the bowl in which the metal tube 7 of the stem projects. The sleeve 11 is further provided with three apertures in its walls at different heights and at different vertical planes with respect to the circumference of the sleeve and these apertures are shown at 15, 16 and 17.

The sleeve 11 is so fitted in the bowl as to be rotatably adjustable, and for the purposes of adjustment there is provided a convenient lever 19 which may be either releasably i-lxed thereto or integral therewith and provided with a pointer 20, and inasmuch as this lever is preferably formed or" metallic material an extension of such heat insulation material as wood or bakelite may be aflixed thereto, as illustrated at 21.

Manual operation of the adjustment lever 21 brings about registry of one of the apertures 15, 16 or 17 with its corresponding aperture 12, 13 or 14 respectively, and the apertures l5, 16 and 17 are so arranged with respect to the circumference of the sleeve that only one of these passageways l2, 13 or 14 may be in communil cation with thev interior of the sleeve 11 at any given time. Moreover the apertures 15, 16 and 17 are so arranged in the wall oi the sleeve that they never register with the passageways 1,2', 13 or 14 at any time, and this is because of the. fact that these passageways are sufficiently inclined and so disposed that as each aperture, such as 15, is rotated 186 from the point at which it registered with its corresponding passage 12, the aperture is disposed at a level underneath the passage 12 so as to eiectively prevent any communication with the exterior through any of these apertures 12, 13 and 14 to the exterior as long the sleeve 11 is in- Serted in its operative position.

Referring to Figure 2, it will be seen that port 16 is in registry with the passage 13 from the interior of the bowl so as to allow free passage of the smoke from the interior of the bowl through the passage 13 and the registering port 16 to the interior of the sleeve down into the bore 18, through the metal tube 7 and out through the bore 8 of the mouthpiece. The particular embodiment of the invention set forth in the drawing shows the pointer 20 to be in forward position corresponding to the longitudil naly axis of the pipe.

In accordance with this showing, a rotation of the handle 21 through an` arc of 90 to the right would bring the pointer to a point A, which would bring port 17 in registry with pasn sage 14 and at the same time close the passages 12 and 13. A rotation of the handle 21 through an arc of 90 to the left from the position shown in Figure 1 would bring the pointer 20 to a point B, which would rotate the sleeve to such an extent as to bring the port 15 in registry with the passage 12 and at the same time close the passages 13 and 14. Obviously, the sleeve may have its ports 15, 16 and 17 arranged at other relative positions than shown so that the registry of the various ports with the passages may be tobacco and ignited, the smoker turns the lever 21 so that the pointer 20 is at the point B, which operation as previously described brings the upper port 15 in registry with the passage 12. The passage 12 is at approximately or slightly below the level of the pipe bowl at which the combustion is taking place at this time. As further combustion takes place during the smoking operation and the tobacco in the bowl is approximately burned down to the level of the passage 13, it will be seen that the passage 12 no longer affords a means for adequate drawing purposes because of its high level with respect to the upper level of the tobacco. Accordingly, therefore, the handle is then turned to the position shown in Figure l so as to bring the sleeve port 16 into registry with the passage 13 which is approximately at the upper level of the tobacco where the combustion is taking place. Obviously, as the to bacco reaches its lower level near the passage 14, due to the combustion or the tobacco, the handle 21 may be then turned so that the pointer is brought around to the point A so as to bring port 17 in registry with the passage 14.

lt is important that the sleeve 11 be so fitted into the bore of the bowl that it will be readily rotatable and at the same time sufficiently snug so as to prevent leakage. Furthermore, due to the diierent co-eiiicients of expansion of the metal material used in the sleeve and the nonmetallic material used in the bowl, the sleeve may tend to bind when subjected to high temperature.

Accordingy, to overcome this possibility there is provided a slightly modied form, as shown in Figure 4, which correspo-nds in every respect to the device, as disclosed in Figures 1, 2 and 3, with the exception that there may be provided a stationary sleeve 22 tted within the bowl and adapted to receive the sleeve 11 so that the latter will be rotatable under all temperature conditions. In this particu'ar form the stationary sleeve is apertured at 23, 24, 25, 26, 27 and 28 so as, to correspond to and be continuous with passages 12, 13, 14, 15, 16 and 17, respectively, and the sleeve 22 is so mounted in the pipe bowl that it will be insured against movement during the operation of the interior rotatable sleeve.

The purpose of the apertures 12', 13 and 14 is for cleaning which may be readily effected by a simple removal of the sleeve 11 in either of the modications shown in Figures 2 or 4, as this leaves a clear and substantially continuous passage from the exterior of the pipe bowl into the interior so as to receive the usual pipe cleaner. In the modification shown in Figure 4 no difficulties are presented by the existence of the extra stationary sleeve inasmuch as this is apertured so as to correspond with the inclined and aligned apertures 12v, 12', 13, 13', and 14, 14.

It will thus be seen that there has been provided a tobacco pipe construction by which it is possible to alford an adequate draw oi the cool, dry smoke fromvv the bowl at substantially the level at which the combustion is taking place without the necessity of drawing the smoke through the unburned tobacco. It will also be seen that there is little or no possibility of the natural saliva from the mouth` reaching the pipe bowl combustion chamber as the lowermost passageway is at a height considerably above the po-int of registry of the lower passage with the aperture of the sleeve. This is true in spite of the fact that the smoke may be drawn from a level of combustion at a point substantially lower than the level at which it would be possible for the saliva to build up so as to iiow into the bowl, even when the lowermost passage is placed int-o communcation with the passageway extending through the mouthpiece. It will further be seen that there has been provided such a pipe having all of the foregoing advantageous characteristics which will be simple to operate and adjust and which, by its very nature, includesan adequate indication of the adjustment which has been effected and which is desired. It will further be seen that the pipe being of such a nature as to be easily and readily adjusted is made adjustable for the foregoing beneficial results which may be obtained, all of which tend toward the promotion of regular and improved combustion so as to lessen the possibilityr of the pipe going out during normal smoking operation and this because of the improved suction draft which may be thus created to the exclusion of the necessity of drawing the smoke through the unburned tobacco and the elimination of contact between the saliva and the tobacco.

I claim:

1. A tobacco pipe including a bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the ore of the stem, a plurality of passages between the bowl and the channel, a plurality of passages between the channel and the exterior of the pipe and a single valve means for selectively controlling the ilow of smoke from the bowl to the stern through one of said passages to the exclusion of the others, each of said latter passages being in alignment with one of said rst mentioned passages so as to constitute a substantially continuous passage for cleaning purposes.

2. A tobacco pipe including a bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the bore of said stem, a plurality of vertically spaced passages between the bowl and the channel, and a single valve means for selectively controlling the flow of smoke from the bowl to the stem through one of said passages to the exclusion of the others, and a plurality of vertically spaced passages extending from the channel to the exterior of the pipe and arranged in alignment with the aforementioned passages.

3. A tobacco pipe including a bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the bore of said stem, a plurality of vertically spaced passages extending from said bowl into said channel so as to be in communication therewith and from said channel to the exterior of said pipe through the wall thereof, said passages being inclined upwardly from said bowl, and a single hollow sleeve valve provided with a plurality of vertically staggered ports adapted to alternately provide a communication from the bowl to said stem, said sleeve being manually operable, said ports being incapable of registry with that portion of each of said passages which extend from the channel to the exterior of the pipe.

4. A tobacco pipe including a bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the bore of said stem, a plurality of vertically spaced passages extending from said bowl into said channel so as to be in communication therewith and from said channel tothe exterior of said pipe through the Wall thereof, said passages being inclined upwardly from said bowl, and a single hollow sleeve valve provided with a plurality oi' vertically staggered ports adapted to alternately provide a communication from the bowl to said stem, said sleeve being manually operable,

said ports being incapable of registry with that portion of each of said passages which extend from the channel to the exterior of the pipe, said sleeve being provided with a manually operable lever in the form of a pointer capable of visible indication as to the adjustment of the sleeve which has been or which is desired to be effected.

5. A tobacco pipe including a bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the bore of said stem, a plurality of vertically spaced passages between the bowl and the channel and constituting the sole outlet from said bowl to said bore, a single manually operable valve member provided with ports adapted to be selectively and alternately placed in registry with said passages, and a plurality of passages extending from said channel to the exterior of said pipe through the wall thereof and in alignment with said aforementioned passages, said sleeve valve being adapted to prevent communication through the passages extending from the channel to the exterior, regardless of the adjustment of the valve which may be ei'iected.

6. A tobacco pipe including a non-metallic bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the bore of the stem, a plurality of vertically spaced passages extending from said bowl into said channel so as to be in communication therewith and from said channel to the exterior of said pipe through the wall thereof, a stationary metallic sleeve arranged therein and provided with ports in registry with those in said bowl, said passages being inclined upwardly from said bowl, a single hollow metallic sleeve valve rotatably arranged within said stationary sleeve and provided with a plurality of vertically spaced and staggered ports adapted to alternately provide a communication from the bowl to the stem, said sleeve being manually operable, said ports in said rotatable sleeve being incapable of registry with that portion of each of said passages vvhich extend from the channel to the exterior of the pipe, said sleeve being provided with a manually operable lever in the form of a pointer capable of visible indication as to the adjustment of the sleeve which has been or which is desired to be elected.

7. A tobacco pipe including a bowl and a stem portion, said pipe being provided with a channel adjacent the bowl and in communication with the bore of said stem, a plurality of vertically spaced passages extending from said bowl into said channel so as to be in communication therewith and from said channel to the exterior of said pipe through the wall thereof, said passages being inclined upwardly from said bowl, and a single hollow sleeve valve provided with a plurality of vertically staggered ports adapted to alternately provide a communication from the bowl to said stern, said sleeve being manually operable, said ports being incapable of registry with that portion of each of said passages which extend from the channel to the exterior of the pipe, said sleeve being provided with a manually operable lever in the form of a pointer capable of visible indication as to the adjustment of the sleeve which has been or which is desired to be effected, said lever and said sleeve being of metallic material and said lever being provided with a hand gripping portion of heat insulating material.

MARTIN MIKESH. 

